EP 2481824 A1 20120801 - Pure titanium sheet excellent in balance between stamping formability and strenght
Title (en)
Pure titanium sheet excellent in balance between stamping formability and strenght
Title (de)
Reines Titanblech mit hervorragender Balance zwischen Stanzformbarkeit und Festigkeit
Title (fr)
Feuille en titane pur ayant un excellent équilibre entre formabilité et force d'estampage
Publication
Application
Priority
JP 2011017109 A 20110128
Abstract (en)
Disclosed is a pure titanium sheet having a strength corresponding to JIS Grade 2 level (215 MPa in terms of 0.2% yield strength) or more and having satisfactory stamping formability. The pure titanium sheet includes titanium and inevitable impurities, has a 0.2% yield strength of 215 MPa or more, has an average grain size d of its structure of 25 ¼m or more and 75 ¼m or less, and has a hexagonal crystal structure, in which respective grains in the hexagonal crystal structure have an average of Schmidt factors (SF) of (11-22) twins with a rolling direction as axes, and the average Schmidt factor (SF) and the average grain size d satisfy following Expression (1): 0.055 ‰¤ SF / ˆšd ‰¤ 0.084
IPC 8 full level
C22C 14/00 (2006.01); C22F 1/18 (2006.01); F28F 21/08 (2006.01)
CPC (source: EP KR US)
C22C 14/00 (2013.01 - EP US); C22F 1/183 (2013.01 - EP US); F17D 5/02 (2013.01 - KR); F28F 21/086 (2013.01 - EP US); G01M 3/007 (2013.01 - KR)
Citation (applicant)
- JP 2004285457 A 20041014 - KOBE STEEL LTD
- JP 2002317234 A 20021031 - KOBE STEEL LTD
- JP 2009228092 A 20091008 - SUMITOMO METAL IND
Citation (search report)
- [X] JP H1030160 A 19980203 - SUMITOMO METAL IND
- [X] JP 2004285457 A 20041014 - KOBE STEEL LTD
- [A] JP S63103056 A 19880507 - KOBE STEEL LTD
- [A] JP S60194052 A 19851002 - SUMITOMO METAL IND, et al
- [A] JP H09216004 A 19970819 - NIPPON STEEL CORP
- [A] JP 2002317234 A 20021031 - KOBE STEEL LTD
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2481824 A1 20120801; EP 2481824 B1 20160511; CN 102618752 A 20120801; JP 2012158776 A 20120823; JP 5700650 B2 20150415; KR 20120087837 A 20120807; RU 2487955 C1 20130720; US 2012193084 A1 20120802; US 9353432 B2 20160531
DOCDB simple family (application)
EP 12000548 A 20120127; CN 201210018864 A 20120120; JP 2011017109 A 20110128; KR 20120007674 A 20120126; RU 2012102846 A 20120127; US 201213350057 A 20120113